freebsd-dev/sys/isa/atkbdc_isa.c
Kazutaka YOKOTA d4b248f23e Yet another turn of workaround for psm/ACPI/PnP BIOS
problems currently experienced in -CURRENT.

This should fix the problem that the PS/2 mouse is detected
twice if the acpi module is not loaded on some systems.
2001-09-25 16:59:28 +00:00

370 lines
10 KiB
C

/*-
* Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer as
* the first lines of this file unmodified.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#include "opt_kbd.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/malloc.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <dev/kbd/atkbdcreg.h>
#include <isa/isareg.h>
#include <isa/isavar.h>
static MALLOC_DEFINE(M_ATKBDDEV, "atkbddev", "AT Keyboard device");
/* children */
typedef struct atkbdc_device {
struct resource_list resources;
int rid;
u_int32_t vendorid;
u_int32_t serial;
u_int32_t logicalid;
u_int32_t compatid;
} atkbdc_device_t;
/* kbdc */
devclass_t atkbdc_devclass;
static int atkbdc_probe(device_t dev);
static int atkbdc_attach(device_t dev);
static device_t atkbdc_add_child(device_t bus, int order, char *name,
int unit);
static int atkbdc_print_child(device_t bus, device_t dev);
static int atkbdc_read_ivar(device_t bus, device_t dev, int index,
uintptr_t *val);
static int atkbdc_write_ivar(device_t bus, device_t dev, int index,
uintptr_t val);
static struct resource_list
*atkbdc_get_resource_list (device_t bus, device_t dev);
static struct resource
*atkbdc_alloc_resource(device_t bus, device_t dev, int type,
int *rid, u_long start, u_long end,
u_long count, u_int flags);
static int atkbdc_release_resource(device_t bus, device_t dev, int type,
int rid, struct resource *res);
static device_method_t atkbdc_methods[] = {
DEVMETHOD(device_probe, atkbdc_probe),
DEVMETHOD(device_attach, atkbdc_attach),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
DEVMETHOD(bus_add_child, atkbdc_add_child),
DEVMETHOD(bus_print_child, atkbdc_print_child),
DEVMETHOD(bus_read_ivar, atkbdc_read_ivar),
DEVMETHOD(bus_write_ivar, atkbdc_write_ivar),
DEVMETHOD(bus_get_resource_list,atkbdc_get_resource_list),
DEVMETHOD(bus_alloc_resource, atkbdc_alloc_resource),
DEVMETHOD(bus_release_resource, atkbdc_release_resource),
DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource),
DEVMETHOD(bus_set_resource, bus_generic_rl_set_resource),
DEVMETHOD(bus_delete_resource, bus_generic_rl_delete_resource),
DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
{ 0, 0 }
};
static driver_t atkbdc_driver = {
ATKBDC_DRIVER_NAME,
atkbdc_methods,
sizeof(atkbdc_softc_t *),
};
static struct isa_pnp_id atkbdc_ids[] = {
{ 0x0303d041, "Keyboard controller (i8042)" }, /* PNP0303 */
{ 0 }
};
static int
atkbdc_probe(device_t dev)
{
struct resource *port0;
struct resource *port1;
u_long start;
u_long count;
int error;
int rid;
/* check PnP IDs */
if (ISA_PNP_PROBE(device_get_parent(dev), dev, atkbdc_ids) == ENXIO)
return ENXIO;
device_set_desc(dev, "Keyboard controller (i8042)");
/*
* Adjust I/O port resources.
* The AT keyboard controller uses two ports (a command/data port
* 0x60 and a status port 0x64), which may be given to us in
* one resource (0x60 through 0x64) or as two separate resources
* (0x60 and 0x64). Furthermore, /boot/device.hints may contain
* just one port, 0x60. We shall adjust resource settings
* so that these two ports are available as two separate resources.
*/
device_quiet(dev);
rid = 0;
if (bus_get_resource(dev, SYS_RES_IOPORT, rid, &start, &count) != 0)
return ENXIO;
if (count > 1) /* adjust the count */
bus_set_resource(dev, SYS_RES_IOPORT, rid, start, 1);
port0 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1,
RF_ACTIVE);
if (port0 == NULL)
return ENXIO;
rid = 1;
if (bus_get_resource(dev, SYS_RES_IOPORT, rid, NULL, NULL) != 0)
bus_set_resource(dev, SYS_RES_IOPORT, 1,
start + KBD_STATUS_PORT, 1);
port1 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1,
RF_ACTIVE);
if (port1 == NULL) {
bus_release_resource(dev, SYS_RES_IOPORT, 0, port0);
return ENXIO;
}
device_verbose(dev);
error = atkbdc_probe_unit(device_get_unit(dev), port0, port1);
if (error == 0)
bus_generic_probe(dev);
bus_release_resource(dev, SYS_RES_IOPORT, 0, port0);
bus_release_resource(dev, SYS_RES_IOPORT, 1, port1);
return error;
}
static int
atkbdc_attach(device_t dev)
{
atkbdc_softc_t *sc;
int unit;
int error;
int rid;
unit = device_get_unit(dev);
sc = *(atkbdc_softc_t **)device_get_softc(dev);
if (sc == NULL) {
/*
* We have to maintain two copies of the kbdc_softc struct,
* as the low-level console needs to have access to the
* keyboard controller before kbdc is probed and attached.
* kbdc_soft[] contains the default entry for that purpose.
* See atkbdc.c. XXX
*/
sc = atkbdc_get_softc(unit);
if (sc == NULL)
return ENOMEM;
}
rid = 0;
sc->port0 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1,
RF_ACTIVE);
if (sc->port0 == NULL)
return ENXIO;
rid = 1;
sc->port1 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1,
RF_ACTIVE);
if (sc->port1 == NULL) {
bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->port0);
return ENXIO;
}
error = atkbdc_attach_unit(unit, sc, sc->port0, sc->port1);
if (error) {
bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->port0);
bus_release_resource(dev, SYS_RES_IOPORT, 1, sc->port1);
return error;
}
*(atkbdc_softc_t **)device_get_softc(dev) = sc;
bus_generic_attach(dev);
return 0;
}
static device_t
atkbdc_add_child(device_t bus, int order, char *name, int unit)
{
atkbdc_device_t *ivar;
device_t child;
int t;
ivar = malloc(sizeof(struct atkbdc_device), M_ATKBDDEV,
M_NOWAIT | M_ZERO);
if (!ivar)
return NULL;
child = device_add_child_ordered(bus, order, name, unit);
if (child == NULL) {
free(ivar, M_ATKBDDEV);
return child;
}
resource_list_init(&ivar->resources);
ivar->rid = order;
/*
* If the device is not created by the PnP BIOS or ACPI,
* refer to device hints for IRQ.
*/
if (ISA_PNP_PROBE(device_get_parent(bus), bus, atkbdc_ids) != 0) {
if (resource_int_value(name, unit, "irq", &t) != 0)
t = -1;
} else {
t = bus_get_resource_start(bus, SYS_RES_IRQ, ivar->rid);
}
if (t > 0)
resource_list_add(&ivar->resources, SYS_RES_IRQ, ivar->rid,
t, t, 1);
if (resource_int_value(name, unit, "flags", &t) == 0)
device_set_flags(child, t);
if (resource_int_value(name, unit, "disabled", &t) == 0 && t != 0)
device_disable(child);
device_set_ivars(child, ivar);
return child;
}
static int
atkbdc_print_child(device_t bus, device_t dev)
{
atkbdc_device_t *kbdcdev;
u_long irq;
int flags;
int retval = 0;
kbdcdev = (atkbdc_device_t *)device_get_ivars(dev);
retval += bus_print_child_header(bus, dev);
flags = device_get_flags(dev);
if (flags != 0)
retval += printf(" flags 0x%x", flags);
irq = bus_get_resource_start(dev, SYS_RES_IRQ, kbdcdev->rid);
if (irq != 0)
retval += printf(" irq %ld", irq);
retval += bus_print_child_footer(bus, dev);
return (retval);
}
static int
atkbdc_read_ivar(device_t bus, device_t dev, int index, uintptr_t *val)
{
atkbdc_device_t *ivar;
ivar = (atkbdc_device_t *)device_get_ivars(dev);
switch (index) {
case KBDC_IVAR_VENDORID:
*val = (u_long)ivar->vendorid;
break;
case KBDC_IVAR_SERIAL:
*val = (u_long)ivar->serial;
break;
case KBDC_IVAR_LOGICALID:
*val = (u_long)ivar->logicalid;
break;
case KBDC_IVAR_COMPATID:
*val = (u_long)ivar->compatid;
break;
default:
return ENOENT;
}
return 0;
}
static int
atkbdc_write_ivar(device_t bus, device_t dev, int index, uintptr_t val)
{
atkbdc_device_t *ivar;
ivar = (atkbdc_device_t *)device_get_ivars(dev);
switch (index) {
case KBDC_IVAR_VENDORID:
ivar->vendorid = (u_int32_t)val;
break;
case KBDC_IVAR_SERIAL:
ivar->serial = (u_int32_t)val;
break;
case KBDC_IVAR_LOGICALID:
ivar->logicalid = (u_int32_t)val;
break;
case KBDC_IVAR_COMPATID:
ivar->compatid = (u_int32_t)val;
break;
default:
return ENOENT;
}
return 0;
}
static struct resource_list
*atkbdc_get_resource_list (device_t bus, device_t dev)
{
atkbdc_device_t *ivar;
ivar = (atkbdc_device_t *)device_get_ivars(dev);
return &ivar->resources;
}
static struct resource
*atkbdc_alloc_resource(device_t bus, device_t dev, int type, int *rid,
u_long start, u_long end, u_long count, u_int flags)
{
atkbdc_device_t *ivar;
ivar = (atkbdc_device_t *)device_get_ivars(dev);
return resource_list_alloc(&ivar->resources, bus, dev, type, rid,
start, end, count, flags);
}
static int
atkbdc_release_resource(device_t bus, device_t dev, int type, int rid,
struct resource *res)
{
atkbdc_device_t *ivar;
ivar = (atkbdc_device_t *)device_get_ivars(dev);
return resource_list_release(&ivar->resources, bus, dev, type, rid,
res);
}
DRIVER_MODULE(atkbdc, isa, atkbdc_driver, atkbdc_devclass, 0, 0);
DRIVER_MODULE(atkbdc, acpi, atkbdc_driver, atkbdc_devclass, 0, 0);